An incredible preamp pedal based on the Two Rock John Mayer Amplifier. This preamp pedals nails the nuances of the TRJM with its touch sensitivity, clean tone, and TR type overdrive! Touch sensitivity with these pedals is off the chart!! Unreal tone! Get the tone of a TRJM for a fraction of the cost! This TRJM features the Foot switch upgrade so you can turn the pedal off when not in use!